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29 Cards in this Set

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STP
0 degrees and 101 KPa
SATP
25 degrees and 100 KPa
Pressure is....
force per unit area
What are four physical properties of gases?
Always fill their containers
Are highly compressible
Diffuse
Temperature effects either the volume or the pressure of a gas
The pressure exerted by air
Atmospheric pressure (1 atm)
________ effects either the volume or pressure of a gas
Temperature
Gases increase in volume and pressure when _______
Heated
At sea level, average atmospheric pressure is about....
101 KPa
What does STP stand for?
Standard temperature and pressure
What does SATP stand for?
Standard ambient temperature and pressure
What is Boyle's Law?
as the pressure on a gas increases, the volume of the gas decreases, other variables such as temperature and amount of gas remain constant.
How can we write out Boyle's Law?
V1P1= V2P2
Convert 20 degrees celcius into Kelvin
293 K
Convert 300K into degrees celcius
27 degrees celsius
What are the temperatures in K of STP and SATP?
STP= 273 K
SATP=298 K
French physicist Jacques Charles determined the relationship between the ______ and ______ of a gas
temperature and volume
What number do you add to convert degrees celsius to kelvin?
273!!
What does the Charles law state?
The volume (V) increases proportionally as the temperature (T) increases
What is the formula used in the Charles Law?
V1 = V2
-- --
T1 = T2
True or false
Temperature must be in Kelvin in the Charles Law?
True
What do you call the Charles and Boyles Law when put together?
The combined gas law
What is the formula for the combined gas law?
p1v1 = p2v2
------------
T1 T2
Molar mass is in...
g/mol
How do we calculate the molar mass?
1. Write the correct chemical formula
2.Find the atomic molar mass
3. Add together
What formula do we use when we need to find the relationship of amount in moles, mass and molar mass?
n= m
--
M
What is the molar volume of a gas at SATP?
24.8 L/Mol
What is the molar volume of a gas at STP?
22.4 L/Mol
Why is it easier to work with volume instead of the mass of a gas?
It is much more convenient because it is more precise, since gases have such small amoounts of mass.
what is the formula for molar volume?
n= v
---
V